Machine for simultaneously forming rings and assembling them on shafts



Nov. 16, 1937. G. F. ROBARGE MACHINE FOR SIMULTANEOUSLY FORMING RINGS AND ASSEMBLING THEM ON SHAF TS 5 Sheets-Sheet 1 Filed June 20, 1956 mix? BY 9AM ATTORNEY.

Nov 16, 1937. G. F. ROBARGE MACHINE FOB SIMULTANEOUSLY FORMING RINGS AND ASSEM BLING THEM ON SHAFTS Filed June 20, 1956 3 Sheets-Sheet 2 NTOR.

ATTORNEY.

Nov. 16, 1937. .G. F. ROBARGE 2,099,624

MACHINE FOR SIMULTANEOUSLY FORMING RINGS AND ASSEMBLING ON SHAFTS Filed June 20, 1336 3 Sheets-Sheet 3 Patented Nov. 16, 1937 UNITED STATES PATENT OFFICE RINGS SHAFTS AND ASSEMBLING THEM ON George F. Robarge, Toledo, Ohio Application June 20,

1 Claim.

This application relates to a machine for forming and simultaneously assembling a bushing or ring on a shaft or spindle.

The principal object of the invention is to pro- 5 vide a machine which will cut a piece from a spool of ribbon-like stock, form the piece into a ring or bushing and simultaneously assemble it on a shaft or spindle.

For an understanding of the machine, refer 10 ence should be had to the accompanying drawings disclosing the same. In these drawings,

Fig. 1 is a top plan view of a machine in the direction of the arrow I of Fig. 2.

Fig. 2 is an elevation section view on line 22 15 of Fig. 1.

Fig. 3 is an end View in the direction of the arrow 3 of Fig. 1.

Fig. 4 is an enlarged plan view of certain parts of the machine in the direction of the arrow 4 20 of Fig. 5.

Fig. 5 is an elevation view of the parts of Fig. 4 in the direction of the arrow 5 of Fig. 4.

Figs. 6, '7, 8 and 9 show steps in the operation of forming and applying a cut piece of stock to a 25 shaft or spindle.

Fig. 10 shows a shaft or spindle upon which a ring is to be applied.

Fig. 11 shows the shaft or spindle with the ring applied thereto.

Referring to these drawings it may be seen that the machine comprises a table l upon which are mounted continuously rotating meshing geared rolls l I having serrated edge grabbing plates l2 which rotate with the rolls around their 35 shafts M to cause intermittent forced feed of the free end of stock I from a spool adjacent to the machine and not shown into and through a guide I6 and into proximity to a stationary die I! with which cooperates a movable die I8. The cooper- 40 ation of these two dies serves to cut off a piece IQ of the stock along the plane represented by the alined edges X-X of these two dies.

The die I8 is not only a cutting die but in addition is a forming die and together with a 45 second forming die 20 forms the cut off piece of stock I9 into a ring and simultaneously applies it to the cylindrical portion of a shaft or spindle 2| inserted in a holder 22 and between the adjacent ends of the two forming dies.

50 These dies are caused to reciprocate across the line of feed of the stock l5 by suitable means 1936, Serial No. 86,261

synchronized to the means for rotating the feed rolls l I, so that feed, cut off, and forming are properly synchronized. The means for rotating the feed rolls II and for reciprocating the dies l8-20 comprises a motor driven drive shaft 50 on which is a bevel gear 5| meshing with a bevel gear 5la on a cross shaft 5lb provided with a bevel gear 5| 0 meshing with a bevel gear 52 on the lower end of shaft [4; on the ends of shaft 50 are bevel gears 53 meshingwith bevel gears 54 on the lower ends of shafts 55 journalled at 56 on the machine table II] and having on their upper ends cams 5! adapted to engage the dies I8 and 20 for advancing them towards each other and for permitting them tobe separated by the springs 58.

The forming dies are formed as illustrated and operate, when moved towards each other, in such a manner that the cutting edge X of the die I8 cuts the leading end of the stock l5 into a piece I9; thereafter, upon continued movement of the forming dies toward each other, the forming die I8 bends the cut piece l9 around the shaft or spindle 2| as a mandrel until the ends of the cut piece are close enough together so as to be receivable in the arcuate cut out 26 of the forming die 20; continued movement of the forming dies towards each other further bends the cut piece i9 into a complete circle tightly fitted around the spindle 2|; after this the forming dies are released by their operating mechanism so as to return to their initial position and free the bushed spindle so that the latter can be removed from the machine and replaced by an unbushed spindle.

I claim:

A machine for forming a ring or bushing and assembling it on a shaft or spindle simultaneously comprising a shaft or spindle holder, cutting and forming dies on diametrically opposed sides of the spindle and having adjacent ends shaped to sever a leading part of a ribbon of stock from the remainder of the ribbon to provide a cut piece of stock and to form the cut piece of stock into a ring around the spindle as a mandrel, the cutting and forming operations being performed in the same single stroke of the two dies, and means for moving the dies towards and away from each other and the shaft or spindle.

GEORGE F. ROBARGE. 

